Sliding-door fastener



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(No Model.) T. TIGHB' SLIDING DOOR FASTENER. I No. 568,078. Patented Sept 22,- 1896.

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SLIDING DOOR FASTENER. No. 568,078. Patented. Sept. 22, 1896.

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THOMAS TIGHE, OF SOHENEOTADY, NEW YORK.

SLIDING-DOOR FASTENER.

SPECIFICATION forming part of Letters Patent No. 568,078, dated September 22, 1896. Application filed June 17, 1896. Serial No. 595,880. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS TIGHE, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented certain new and useful Improvements in Looks for Sliding Doors, of which the following is a specification.

The object of my invention is to provide sliding doors with improved locking devices.

In the aocompanyin gdrawin gs I have shown my improvements applied to a sliding freightcar door.

Figure 1 shows a side elevation of part of a freight-car body having the sliding door equipped with my improvements. Fig. 2 is a perspective view, on an enlarged scale. of the member of the locking devices which is secured to the door. Fig. 3 is a similar view in section showing the construction and operation of the vertically-moving spring-bolt.

Fig. lis a detail perspective view of one of the socket-pieces. Fig. 5 is a detail View of a modification.

The sliding door A is shown as provided with guide-rollers B, supported and moving on a rail 0. The drawings show the door closed. When opened,itis moved to the left, as viewed in Fig. 1. On its lower left-hand corner the door has secured to it a casting D. (Shown on an enlarged scale in Figs. 2 and 3.) The front plate d of this casting is firmly secured to the front of the door, while the back plate d is secured to the inside thereof. A vertical edge plate 01* is secured to the edge of the door and forms a cover for the housing E, in which the sliding bolt moves. This housing is formed in a front block, which unites the plates cZ'and CZ, and it is provided with a lug e, to which, by means of a screw 6, the plate 0Z is secured.

The bolt F is slotted at f, and in this slot is arranged a spiral spring f, bearing against the under side of the lug c. The tendency of the bolt is therefore to descend. At its upper end, above the casting D, the bolt is formed with lugs g, which, in connection with the lug 6, limit the downward movement'of the bolt. The head of the bolt is also formed with an upwardly-projecting lug G, which is perforated, so that a chain, tool, or the hand of the operator may be readily applied, and

it is also formed with a downwardly-extending arm G, formed with a laterally-projecting lug g, perforated at 9 This perforated lug g is arranged to register with a perforated lug H on the housing E when the bolt is depressed. When in this position, a wire J may be threaded and a lead seal K applied, or a padlock or other form of lock maybe used instead of the seal-lock. A bolt-socket L is secured to the car-body near the edge of the door-opening, and another similar boltsocket M is secured to the car-body at a suitable dist-ance from the opening to permit the door to be fully opened before the bolt shoots. Each bolt-socket is formed with a vertical hole Z, on opposite sides of which are inclined ways Z, on which the bolt slideson its way to or from the hole Z. also formed with suitable strengtheningbrackets and webs Z and with an upwardlyprojecting flange Z to guide the door.

The housing E is formed with a lateral projection E, which is inclined on its under side 6 as shown, so that in case the door sags the projection may ride along the incline Z or along the top of the bolt-socket, thus guiding the door more smoothly and preventing sharp edges from biting into the top of the bolt-socket.

Fig. 1 shows the door closed and locked. When the seal-lock is removed and the bolt raised, the door may be slid to the left, the bolt riding down the incline, avoiding friction which would otherwise occur if the casting were straight at this point. When being duly opened, the bolt will ride up the incline Z of casting M and then will descend into the hole Z. If the door slides beyond the casting M, it can be moved back. The bolt riding up the incline will shoot into the hole Z at the proper time.

It is obvious that my improvements maybe applied to very many kinds of sliding doors, but they are especially applicable to heavy doors, such as grain-car doors and the doors of freight-cars generally.

In Fig. 5 a slight modification is shown. In this instance the seal K is secured to the perforated lug H, as in the other construction, but it passes through a perforation h, formed in the head'of the bolt close to the perforation in its upper end, to which the Each socket-piece is chain or handle is applied. hen so constructed, the seal-lock very securely connects the bolt with the housing and prevents a vertical movement thereof.

I claim as my invention 1. A sliding door provided With a casting having a housing for a vertically-moving bolt, a plate secured to the edge of the door and secured to a lug projecting through the boltsocket, a spring beneath the lug Within a recess in the bolt, and bolt-sockets consisting of castings formed With vertical holes for the lower end of the bolt and with oppositely-inclined Ways for the bolt to ride on.

THOMAS TIGHE.

Witnesses:

MIoHAEL J. CALLAHAN, THOMAS F. GoeeINs. 

